Wolf Cinema DLD-380FD - Manual (Page 5)

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Figure 3 below shows the block diagram of this three-chip laser illumination system. The
laser’s blue light is captured, collimated and passed through a partially reflecting filter. This filter
reflects some of the blue light to illuminate the primary blue D-ILA panel. The remaining blue laser
light passes through the filter to excite the phosphors along the edge of the slowly spinning
phosphor wheel. The re-emitted yellow light now contains the red and green primary components,
and they are combined with the blue light and forwarded to the respective R-G-B imaging sections
of the light engine. Some simple despeckling of the blue laser light is needed, but the yellow light
from the phosphors is speckle free:
Figure 3: BLU-Escent Block Diagram
The imaging block consists of three D-ILA (LCoS) reflective panels, illuminated by the red,
green and blue light sources. After modulation at each panel, the primary light sources are
combined and projected through the lens. D-ILA panels are known for their high performance and
ability to create very high contrast images.
Ideally Suited for Home Theater Installations
Today’s home theater installations are quite demanding and must be designed to:
•
Provide for high reliability over extended viewing times
• Remain stable over time in peak white performance
•
Offer excellent brightness and high resolution for screens up to 12’ wide [3.7
meters]
• Provide for high contrast levels and extended, accurate color gamut [colorimetry]
• Offer flexibility in mounting positions [i.e., long throw optics, ample lens offsets]
•
Provides for exceptional value and low cost of operation over time